I already have Fiber Internet from Mobile Vikings, can I switch Fiber subscriptions?

You certainly can! Through your My Viking-account you can easily arrange this yourself:

• Do you want to switch between 'Fiber Fast' and 'Fiber Superfast' subscriptions? Good news, you can keep your current modem and boosters!
  
  
• Would you like to enjoy super fast speeds with our 'Hyperfast' subscription? This requires the visit of a technician: he will install a new modem (Internet Box+) and ONT for you. Your Internet Box+ will be connected to the fiber network through the ONT Box. Do you already have wifi boosters? No problem! These will be replaced by brand new Wifi boosters+.

Are you changing subscriptions? In both cases a pro-rata invoice will be made automatically, so you only pay what you consume ;-)